Question: Acetic acid can also react as a very weak base pK b = 20. Two different sites on acetic acid might become protonated to give

Acetic acid can also react as a very weak base pK b = 20.

Two different sites on acetic acid might become protonated to give the conjugate acid. Draw both of these possible conjugate acids, and explain (resonance) why the correct one is more stable. Calculate the pK a  of this conjugate acid.

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